NUCLEAR PHYSICS |
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Effects of Electron Flow Current Density on Flow Impedance of Magnetically Insulated Transmission Lines |
HE Yong*, ZOU Wen-Kang, SONG Sheng-Yi
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Institute of Fluid physics, China Academy of Engineering Physics, Mianyang 621900
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Cite this article: |
HE Yong, ZOU Wen-Kang, SONG Sheng-Yi 2011 Chin. Phys. Lett. 28 082901 |
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Abstract In modern pulsed power systems, magnetically insulated transmission lines (MITLs) are used to couple power between the driver and the load. The circuit parameters of MITLs are well understood by employing the concept of flow impedance derived from Maxwell's equations and pressure balance across the flow. However, the electron density in an MITL is always taken as constant in the application of flow impedance. Thus effects of electron flow current density (product of electron density and drift velocity) in an MITL are neglected. We calculate the flow impedances of an MITL and compare them under three classical MITL theories, in which the electron density profile and electron flow current density are different from each other. It is found that the assumption of constant electron density profile in the calculation of the flow impedance is not always valid. The electron density profile and the electron flow current density have significant effects on flow impedance of the MITL. The details of the electron flow current density and its effects on the operation impedance of the MITL should be addressed more explicitly by experiments and theories in the future.
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Keywords:
29.27.Bd
29.27.Fh
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Received: 26 January 2011
Published: 28 July 2011
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PACS: |
29.27.Bd
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(Beam dynamics; collective effects and instabilities)
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29.27.Fh
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(Beam characteristics)
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[1] Spielman R B, Stygar W A, Seamen F F, Long F, Ives H, Garcia R and Wagoner T 1997 Proc. 11th IEEE Pulsed Power Conf (Baltimore) pp 709–714
[2] Savage M E, Bennett L F, Bliss D E, Clark W T, Coats R S, Elizondo J M, Lechien K R, Harjes H C, Lehr J M, Maenchen J E, McDaniel D H, Pasik M F, Pointon T D, Owen A C, Seidel D B, Smith D L, Stoltzfus B S, Struve K W, Stygar W A, Warne L K, Woodworth J R, Mendel C W, Prestwich K R, Shoup R W, Johnson D L, Corley J P, Hodge K C, Wagoner T C and Wakeland P E 2007 The 16 th IEEE Pulsed Power Conference (Albuquerque 17–22 June 2007) p 979
[3] Feng S P, Li H T, Xie W P, Deng J J, Xia M H, Ji C, Wang M, Guan Y C and He A 2009 High Power Laser and Particle Beams 21 463 (in Chinese)
[4] Stygar W A, Cuneo M E, Headley D I, Ives H C, Leeper R J, Mazarakis M G, Olson C L, Porter J L, Wagoner T C and Woodworth J R 2007 Physical Review Special Topics: Accelerators and Beams 10 030401
[5] Ron A, Mondelli A A and Rostoker N 1973 IEEE Trans. Plasma Sci. 1 85
[6] Creedon J M 1975 J. Appl. Phys. 46 2946
[7] Creedon J M 1977 J. Appl. Phys. 48 1070
[8] Mendel C W and S E Rosenthal 1995 Phys. Plasmas 2 1332
[9] Mendel C W et al 1985 Phys. Rev. A 32 1091
[10] Ottinger P F and Schumer J W 2006 Phys. Plasmas 13 063101
[11] Lawconnell R I and Neri J 1990 Phys. Fluids B 2 629
[12] Corcoran P A, Douglas J W, Smith I D, Spence P W, Stygar W A, Struve K W, Martin T H, Spielman R B and Ives H C 1997 Proc. 11 th IEEE Pulsed Power Conference (Baltimore, USA, June 29–July 2 1997) p 466
[13] Struve K W, Martin T H, Spielman R B, Stygar W A, Corcoran P A and Douglas J W 1997 Proc. 11 th IEEE Pulsed Power Confference (Baltimore, USA, June 29–July 2 1997) p 162
[14] Ottinger P F, Schumer J W, Allen R J and Commisso R J 2003 Proc. 14 th Pulsed Power Confference (Dallas, USA 15–18 June 2003) p 8
[15] Jennings C A, Chittenden J P, Cuneo M E, Stygar W A, Ampleford D J, Waisman E M, Jones M, Savage M E, LeChien K R and Wagoner T C 2010 IEEE Trans. Plasma Sci. 38 529
[16] Song S Y, Gu Y C, Guan Y C and Zou W K 2008 High Power Laser and Particle Beams 20 482 (in Chinese)
[17] Baranchikov E I, Gordeev A V, Korolev V D and Smirnov V P 1978 Sov. Phys. JETP 48 1058
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